JP2003116211A - Device and method for separating metal core material and plastic coated material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for easily separating a metal core material and a plastic coated material. SOLUTION: In a separator, which separates the metal core material 2 and the plastic coated material 3 by inserting a material S where the metal core material and the plastic coated material 3 are united into a roll 10 from the direction A and crushing it by a plurality of rolls 10, 11, and 12, roll interval adjusting mechanisms 20 are arranged for the plurality of rolls 10, 11, and 12 arranged longitudinally, and further a pressure adjusting mechanism 22 is arranged for the roll 12 on an outlet side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separating device and a separating method for separating a metal core material and a plastic coating material.

[0002]

2. Description of the Related Art For example, as shown in FIG. 2, an optical fiber cable 1 includes a metal core material 2 provided as a tension member, a plastic covering material 3 formed as a spacer on the outer circumference thereof, and an outer circumference of the plastic covering material 3. The optical cable core wire 4 is housed in the groove provided in the optical fiber cable, and the sheath 5 is formed to cover the optical cable core wire. This fiber optic cable is collected after it is used,
It is destroyed all at once and separated into a metal core material and a plastic coating material by magnetic force or difference in specific gravity and recycled.

Conventionally, in the optical fiber cable having the above structure, the metal core material 2 provided as a tension member is used.
In order to separate the plastic coating material 3 formed as a spacer on the outer periphery thereof, the both are collectively crushed by a crusher,
After breaking metal and plastic into pieces, they were separated by magnetic force or specific gravity selection.

[0004]

However, in the method of separating with a crusher, there is a problem that metal powder is mixed in the plastic in an amount of several percent, which hinders the recycling of the plastic.

[0005]

The present invention provides a separating apparatus and a separating method for a metal core material and a plastic coating material, which solve the above problems.

The invention according to claim 1 is provided with a plurality of rolls arranged in the longitudinal direction and a roll gap adjusting mechanism for adjusting the gap between the rolls, and at least the gap adjusting mechanism for the outlet side roll is hydraulic, It is a device for separating a metal core material and a plastic coating material, which is characterized by utilizing equipment such as air pressure and water pressure.

The invention according to claim 2 is a separation method in which the plastic coating material is crushed by a plurality of rolls arranged in the longitudinal direction, whereby the metal core material and the plastic coating material are separated.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic explanatory view of a device for separating a metal core material and a plastic coating material according to the present invention.
This separating device consists of three rolls 1 arranged in the longitudinal direction.
0, 11, 12 and a roll gap adjusting mechanism 20 for adjusting the gap between the rolls 10, 11, 12 are provided.

The three rolls are arranged at appropriate intervals in the longitudinal direction. The number of rolls is not limited to three and may be two or four or more. This roll is rotated at a predetermined rotation speed.

Each roll 10, 11, 12 is provided with a roll gap adjusting mechanism 20. The roll gap adjusting mechanism 20 has, for example, a screw structure, and the roll gap can be adjusted by rotating the screw. Such a structure is a known structure.
The roll gap adjusting mechanism 20 of the outlet side roll 12 is provided with a screw structure and a pressure adjusting mechanism 22 composed of equipment such as hydraulic pressure, pneumatic pressure, and hydraulic pressure. As described above, when the pressure adjusting mechanism 22 such as hydraulic pressure, pneumatic pressure, and hydraulic pressure is used as the roll gap adjusting mechanism 20 of the outlet side roll 12, there is an advantage that the life of the roll can be extended. That is, the exit side roll 1
In No. 2, the roll surface is apt to be damaged because a pressure is applied to crush even the metal core material. However, when the pressure adjusting mechanism 22 is provided, the pressure adjusting mechanism 22 serves as a damper and the roll interval is slightly opened. The surface of the roll is less likely to be scratched and the life of the roll is extended.

Next, a method of using the separating device for separating the metal core material and the plastic coating material having the above construction will be described. First, the material to be separated, that is, the material S in which the metal core material 2 and the plastic coating material 3 are integrated, is inserted into the roll 10 from the A direction. The material to be separated may be a long material, but it is preferable to cut it into a predetermined length because it is easy to handle.
Regarding the material inserted into the roll 10, the roll 10 first crushes the plastic coating material by a predetermined amount. Next, the roll 11 further crushes the plastic coating material by a predetermined amount. Finally, the roll 12 breaks the plastic coating material, whereby the plastic coating material 3 and the metal core material 2 are separated.

[0012]

[Example] 13 mm in diameter on the outer circumference of a metal core having a diameter of 3 mm
Separation work was performed using the material provided with the plastic coating material. The distance between the rolls 10 was 10 mm, the distance between the rolls 11 was 5 mm, and the distance between the rolls 12 was 2 mm. As a result, the plastic dressing is roll 10 and roll 1.
It was crushed in the first place at 1 and completely broken at the position of the roll 12, split in two in the longitudinal direction, and separated from the metal core material. In addition, the rolls 12 are spread apart with a metal core material of 3 mm, and the force is balanced with the pressure directly.

In the above description, the case where the metal core material of the optical fiber cable and the plastic coating material are separated has been described, but the present invention is not limited to the optical fiber cable, and the metal core material and the plastic coating material are integrated. Anything can be widely applied.

[0014]

As described above, the apparatus for separating the metal core material and the plastic coating material according to the present invention comprises a plurality of rolls arranged in the longitudinal direction and a roll gap adjusting mechanism for adjusting the gap between the rolls. In addition, at least the interval adjusting mechanism of the outlet rolls uses hydraulic pressure. The method for separating the metal core material and the plastic coating material according to the present invention is a method for separating the metal core material and the plastic coating material by crushing the plastic coating material with a plurality of rolls arranged in the longitudinal direction. According to the device of the present invention, it is possible to reliably separate the metal core material and the plastic coating material with a simple structure, and it is possible to extend the life of the exit side roll, and according to the method of the present invention, it is possible to prevent the metal from being mixed with the plastic. Without this, the metal core material and the plastic coating material can be easily separated.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of the present application.

[Figure 2] Cross-section of optical fiber cable

[Explanation of symbols]

1 optical fiber cable 2 metal core 3 plastic coating materials 10, 11, 12 rolls 20 roll interval adjustment mechanism 22 Hydraulic mechanism

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B29B 17/02 ZAB H01B 15/00 H01B 15/00 B09B 5/00 C Q F term (reference) 4D004 AA07 AA21 AB03 BA05 BA07 CA02 CA04 CB15 4D063 CC01 CC06 GA10 GC01 GC07 GC16 GC21 GD01 GD12 4D067 EE12 EE16 GA20 GB10 4F301 BF04 BF12 BF31 BG42 BG44 5G353 AB03 AC01 CA01 CA04 DA03 EA10 EA11

Claims (2)

[Claims] 1. A plurality of rolls arranged in the longitudinal direction and a roll gap adjusting mechanism for adjusting the gap between the rolls are provided, and at least the gap adjusting mechanism for the roll on the outlet side uses a pressure adjusting mechanism. An apparatus for separating a metal core material and a plastic coating material characterized by. 2. A method for separating a metal core material and a plastic coating material, wherein the plastic coating material is crushed by a plurality of rolls arranged in the longitudinal direction to separate the metal core material and the plastic coating material.